But, for example, if I looked at, fetal hemoglobin relinquishes that oxygen at lower oxygen tensions.

但是，举个例子，如果我看到，胎儿血红蛋白在较低的氧张力下放弃氧气。

Slowing its enrichment of uranium could serve as another sign that Tehran is seeking to lower tensions.

放慢铀浓缩活动可能是德黑兰寻求缓和紧张局势的另一个迹象。

The chemical properties of soap lower the surface tension of water, so anything relying on surface tension to stay afloat will sink.

肥皂的化学性质降低了水的表面张力，因此任何依靠表面张力保持漂浮的东西都会下沉。